citadel/utillib/citadel_dirs.c

   1 /*
   2  * citadel_dirs.c : calculate pathnames for various files used in the Citadel system
   3  *
   4  * Copyright (c) 1987-2017 by the citadel.org team
   5  *
   6  *  This program is open source software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License version 3.
   8  *
   9  *  This program is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *  GNU General Public License for more details.
  13  */
  14 #include <unistd.h>
  15 #include <stdio.h>
  16 #include <sys/stat.h>
  17 #include <ctype.h>
  18 #include <string.h>
  19 #include <limits.h>
  20 #include <time.h>
  21 #include <errno.h>
  22 #include <syslog.h>
  23 #include <libcitadel.h>
  24 #include "citadel.h"
  25 #include "citadel_dirs.h"
  26
  27 /* our directories... */
  28 char ctdl_home_directory[PATH_MAX] = "";
  29 char ctdl_bio_dir[PATH_MAX]="bio";
  30 char ctdl_data_dir[PATH_MAX]="data";
  31 char ctdl_dspam_dir[PATH_MAX]="dspam";
  32 char ctdl_file_dir[PATH_MAX]="files";
  33 char ctdl_shared_dir[PATH_MAX]="";
  34 char ctdl_image_dir[PATH_MAX]="images";
  35 char ctdl_info_dir[PATH_MAX]="info";
  36 char ctdl_key_dir[PATH_MAX]=SSL_DIR;
  37 char ctdl_message_dir[PATH_MAX]="messages";
  38 char ctdl_usrpic_dir[PATH_MAX]="userpics";
  39 char ctdl_bbsbase_dir[PATH_MAX]="";
  40 char ctdl_etc_dir[PATH_MAX]="";
  41 char ctdl_autoetc_dir[PATH_MAX]="";
  42 /* attention! this may be non volatile on some oses */
  43 char ctdl_run_dir[PATH_MAX]="";
  44 char ctdl_spool_dir[PATH_MAX]="network";
  45 char ctdl_netout_dir[PATH_MAX]="network/spoolout";
  46 char ctdl_netin_dir[PATH_MAX]="network/spoolin";
  47 char ctdl_netdigest_dir[PATH_MAX]="network/digest";
  48 char ctdl_nettmp_dir[PATH_MAX]="network/spooltmp";
  49 char ctdl_netcfg_dir[PATH_MAX]="netconfigs";
  50 char ctdl_utilbin_dir[PATH_MAX]="";
  51 char ctdl_sbin_dir[PATH_MAX]="";
  52 char ctdl_bin_dir[PATH_MAX]="";
  53
  54 /* some of our files, that are needed in several places */
  55 char file_citadel_control[PATH_MAX]="";
  56 char file_citadel_config[PATH_MAX]="";
  57 char file_citadel_urlshorteners[PATH_MAX]="";
  58 char file_lmtp_socket[PATH_MAX]="";
  59 char file_lmtp_unfiltered_socket[PATH_MAX]="";
  60 char file_arcq[PATH_MAX]="";
  61 char file_citadel_socket[PATH_MAX]="";
  62 char file_citadel_admin_socket[PATH_MAX]="";
  63 char file_mail_aliases[PATH_MAX]="";
  64 char file_pid_file[PATH_MAX]="";
  65 char file_pid_paniclog[PATH_MAX]="";
  66 char file_crpt_file_key[PATH_MAX]="";
  67 char file_crpt_file_csr[PATH_MAX]="";
  68 char file_crpt_file_cer[PATH_MAX]="";
  69 char file_chkpwd[PATH_MAX]="";
  70 char file_base64[PATH_MAX]="";
  71 char file_guesstimezone[PATH_MAX]="";
  72 char file_dpsam_conf[PATH_MAX] = "";
  73 char file_dspam_log[PATH_MAX] = "";
  74
  75
  76
  77
  78
  79 #define COMPUTE_DIRECTORY(SUBDIR) memcpy(dirbuffer,SUBDIR, sizeof dirbuffer);\
  80         snprintf(SUBDIR,sizeof SUBDIR,  "%s%s%s%s%s%s%s", \
  81                          (home&!relh)?ctdl_home_directory:basedir, \
  82              ((basedir!=ctdldir)&(home&!relh))?basedir:"/", \
  83              ((basedir!=ctdldir)&(home&!relh))?"/":"", \
  84                          relhome, \
  85              (relhome[0]!='\0')?"/":"",\
  86                          dirbuffer,\
  87                          (dirbuffer[0]!='\0')?"/":"");
  88
  89 #define DBG_PRINT(A) if (dbg==1) fprintf (stderr,"%s : %s \n", #A, A)
  90
  91
  92 void calc_dirs_n_files(int relh, int home, const char *relhome, char  *ctdldir, int dbg)
  93 {
  94         const char* basedir = "";
  95         char dirbuffer[PATH_MAX] = "";
  96
  97         /*
  98          * Ok, we keep our binaries either in the citadel base dir,
  99          * or in /usr/sbin / /usr/bin
 100          */
 101         StripSlashes(ctdldir, 1);
 102 #ifdef HAVE_ETC_DIR
 103         snprintf(ctdl_sbin_dir, sizeof ctdl_sbin_dir, "/usr/sbin/");
 104         snprintf(ctdl_bin_dir, sizeof ctdl_bin_dir, "/usr/bin/");
 105 #else
 106         snprintf(ctdl_sbin_dir, sizeof ctdl_sbin_dir, ctdldir);
 107         snprintf(ctdl_bin_dir, sizeof ctdl_bin_dir, ctdldir);
 108 #endif
 109         StripSlashes(ctdl_sbin_dir, 1);
 110         StripSlashes(ctdl_bin_dir, 1);
 111
 112 #ifndef HAVE_AUTO_ETC_DIR
 113         basedir=ctdldir;
 114 #else
 115         basedir=AUTO_ETC_DIR;
 116 #endif
 117         COMPUTE_DIRECTORY(ctdl_autoetc_dir);
 118         StripSlashes(ctdl_autoetc_dir, 1);
 119
 120 #ifndef HAVE_ETC_DIR
 121         basedir=ctdldir;
 122 #else
 123         basedir=ETC_DIR;
 124 #endif
 125         COMPUTE_DIRECTORY(ctdl_netcfg_dir);
 126         COMPUTE_DIRECTORY(ctdl_etc_dir);
 127         StripSlashes(ctdl_netcfg_dir, 1);
 128         StripSlashes(ctdl_etc_dir, 1);
 129
 130 #ifndef HAVE_UTILBIN_DIR
 131         basedir=ctdldir;
 132 #else
 133         basedir=UTILBIN_DIR;
 134 #endif
 135         COMPUTE_DIRECTORY(ctdl_utilbin_dir);
 136         StripSlashes(ctdl_utilbin_dir, 1);
 137
 138 #ifndef HAVE_RUN_DIR
 139         basedir=ctdldir;
 140 #else
 141         basedir=RUN_DIR;
 142 #endif
 143         COMPUTE_DIRECTORY(ctdl_run_dir);
 144         StripSlashes(ctdl_run_dir, 1);
 145
 146 #ifndef HAVE_STATICDATA_DIR
 147         basedir=ctdldir;
 148 #else
 149         basedir=STATICDATA_DIR;
 150 #endif
 151         COMPUTE_DIRECTORY(ctdl_message_dir);
 152         StripSlashes(ctdl_message_dir, 1);
 153
 154 #ifndef HAVE_DATA_DIR
 155         basedir=ctdldir;
 156 #else
 157         basedir=DATA_DIR;
 158 #endif
 159         COMPUTE_DIRECTORY(ctdl_bio_dir);
 160         COMPUTE_DIRECTORY(ctdl_data_dir);
 161         COMPUTE_DIRECTORY(ctdl_dspam_dir);
 162         COMPUTE_DIRECTORY(ctdl_file_dir);
 163         COMPUTE_DIRECTORY(ctdl_image_dir);
 164         COMPUTE_DIRECTORY(ctdl_info_dir);
 165         COMPUTE_DIRECTORY(ctdl_usrpic_dir);
 166         COMPUTE_DIRECTORY(ctdl_bbsbase_dir);
 167
 168         StripSlashes(ctdl_bio_dir, 1);
 169         StripSlashes(ctdl_data_dir, 1);
 170         StripSlashes(ctdl_dspam_dir, 1);
 171         StripSlashes(ctdl_file_dir, 1);
 172         StripSlashes(ctdl_image_dir, 1);
 173         StripSlashes(ctdl_info_dir, 1);
 174         StripSlashes(ctdl_usrpic_dir, 1);
 175         StripSlashes(ctdl_bbsbase_dir, 1);
 176
 177 #ifndef HAVE_SPOOL_DIR
 178         basedir=ctdldir;
 179 #else
 180         basedir=SPOOL_DIR;
 181 #endif
 182         COMPUTE_DIRECTORY(ctdl_spool_dir);
 183         COMPUTE_DIRECTORY(ctdl_netout_dir);
 184         COMPUTE_DIRECTORY(ctdl_netin_dir);
 185         COMPUTE_DIRECTORY(ctdl_netdigest_dir);
 186         COMPUTE_DIRECTORY(ctdl_nettmp_dir);
 187
 188         StripSlashes(ctdl_spool_dir, 1);
 189         StripSlashes(ctdl_netout_dir, 1);
 190         StripSlashes(ctdl_netin_dir, 1);
 191         StripSlashes(ctdl_netdigest_dir, 1);
 192         StripSlashes(ctdl_nettmp_dir, 1);
 193
 194         /* ok, now we know the dirs, calc some commonly used files */
 195
 196         snprintf(file_arcq,
 197                          sizeof file_arcq,
 198                          "%srefcount_adjustments.dat",
 199                          ctdl_autoetc_dir);
 200         StripSlashes(file_arcq, 0);
 201         snprintf(file_citadel_control,
 202                          sizeof file_citadel_control,
 203                          "%scitadel.control",
 204                          ctdl_autoetc_dir
 205                          );
 206         StripSlashes(file_citadel_control, 0);
 207         snprintf(file_citadel_config,
 208                          sizeof file_citadel_config,
 209                          "%scitadel.config",
 210                          ctdl_autoetc_dir);
 211         StripSlashes(file_citadel_config, 0);
 212         snprintf(file_citadel_urlshorteners,
 213                          sizeof file_citadel_urlshorteners,
 214                          "%scitadel_urlshorteners.rc",
 215                          ctdl_etc_dir);
 216         StripSlashes(file_citadel_urlshorteners, 0);
 217         snprintf(file_lmtp_socket,
 218                          sizeof file_lmtp_socket,
 219                          "%slmtp.socket",
 220                          ctdl_run_dir);
 221         StripSlashes(file_lmtp_socket, 0);
 222         snprintf(file_lmtp_unfiltered_socket,
 223                          sizeof file_lmtp_socket,
 224                          "%slmtp-unfiltered.socket",
 225                          ctdl_run_dir);
 226         StripSlashes(file_lmtp_unfiltered_socket, 0);
 227         snprintf(file_citadel_socket,
 228                          sizeof file_citadel_socket,
 229                                 "%scitadel.socket",
 230                          ctdl_run_dir);
 231         StripSlashes(file_citadel_socket, 0);
 232         snprintf(file_citadel_admin_socket,
 233                          sizeof file_citadel_admin_socket,
 234                                 "%scitadel-admin.socket",
 235                          ctdl_run_dir);
 236         StripSlashes(file_citadel_admin_socket, 0);
 237         snprintf(file_pid_file,
 238                  sizeof file_pid_file,
 239                  "%scitadel.pid",
 240                  ctdl_run_dir);
 241         StripSlashes(file_pid_file, 0);
 242         snprintf(file_pid_paniclog,
 243                  sizeof file_pid_paniclog,
 244                  "%spanic.log",
 245                  ctdl_home_directory);
 246         StripSlashes(file_pid_paniclog, 0);
 247         snprintf(file_crpt_file_key,
 248                  sizeof file_crpt_file_key,
 249                  "%s/citadel.key",
 250                  ctdl_key_dir);
 251         StripSlashes(file_crpt_file_key, 0);
 252         snprintf(file_crpt_file_csr,
 253                  sizeof file_crpt_file_csr,
 254                  "%s/citadel.csr",
 255                  ctdl_key_dir);
 256         StripSlashes(file_crpt_file_csr, 0);
 257         snprintf(file_crpt_file_cer,
 258                  sizeof file_crpt_file_cer,
 259                  "%s/citadel.cer",
 260                  ctdl_key_dir);
 261         StripSlashes(file_crpt_file_cer, 0);
 262         snprintf(file_chkpwd,
 263                  sizeof file_chkpwd,
 264                  "%schkpwd",
 265                  ctdl_utilbin_dir);
 266         StripSlashes(file_chkpwd, 0);
 267         snprintf(file_base64,
 268                  sizeof file_base64,
 269                  "%sbase64",
 270                  ctdl_utilbin_dir);
 271         StripSlashes(file_base64, 0);
 272         snprintf(file_guesstimezone,
 273                  sizeof file_guesstimezone,
 274                  "%sguesstimezone.sh",
 275                  ctdl_utilbin_dir);
 276
 277         snprintf(file_dpsam_conf,
 278                  sizeof file_dpsam_conf,
 279                  "%sdspam.conf",
 280                  ctdl_etc_dir);
 281         StripSlashes(file_dpsam_conf, 0);
 282         snprintf(file_dspam_log,
 283                  sizeof file_dspam_log,
 284                  "%sdspam.log",
 285                  ctdl_home_directory);
 286         StripSlashes(file_dspam_log, 0);
 287         /*
 288          * DIRTY HACK FOLLOWS! due to configs in the network dir in the
 289          * legacy installations, we need to calculate ifdeffed here.
 290          */
 291         snprintf(file_mail_aliases,
 292                  sizeof file_mail_aliases,
 293                  "%smail.aliases",
 294 #ifdef HAVE_ETC_DIR
 295                  ctdl_etc_dir
 296 #else
 297                  ctdl_spool_dir
 298 #endif
 299                 );
 300         StripSlashes(file_mail_aliases, 0);
 301
 302         DBG_PRINT(ctdl_bio_dir);
 303         DBG_PRINT(ctdl_data_dir);
 304         DBG_PRINT(ctdl_dspam_dir);
 305         DBG_PRINT(ctdl_file_dir);
 306         DBG_PRINT(ctdl_image_dir);
 307         DBG_PRINT(ctdl_info_dir);
 308         DBG_PRINT(ctdl_key_dir);
 309         DBG_PRINT(ctdl_message_dir);
 310         DBG_PRINT(ctdl_usrpic_dir);
 311         DBG_PRINT(ctdl_etc_dir);
 312         DBG_PRINT(ctdl_run_dir);
 313         DBG_PRINT(ctdl_spool_dir);
 314         DBG_PRINT(ctdl_netout_dir);
 315         DBG_PRINT(ctdl_netin_dir);
 316         DBG_PRINT(ctdl_netdigest_dir);
 317         DBG_PRINT(ctdl_nettmp_dir);
 318         DBG_PRINT(ctdl_netcfg_dir);
 319         DBG_PRINT(ctdl_bbsbase_dir);
 320         DBG_PRINT(ctdl_sbin_dir);
 321         DBG_PRINT(ctdl_bin_dir);
 322         DBG_PRINT(ctdl_utilbin_dir);
 323         DBG_PRINT(file_citadel_control);
 324         DBG_PRINT(file_citadel_config);
 325         DBG_PRINT(file_lmtp_socket);
 326         DBG_PRINT(file_lmtp_unfiltered_socket);
 327         DBG_PRINT(file_arcq);
 328         DBG_PRINT(file_citadel_socket);
 329         DBG_PRINT(file_mail_aliases);
 330         DBG_PRINT(file_pid_file);
 331         DBG_PRINT(file_pid_paniclog);
 332         DBG_PRINT(file_crpt_file_key);
 333         DBG_PRINT(file_crpt_file_csr);
 334         DBG_PRINT(file_crpt_file_cer);
 335         DBG_PRINT(file_chkpwd);
 336         DBG_PRINT(file_base64);
 337         DBG_PRINT(file_guesstimezone);
 338 }
 339
 340
 341 /*
 342  * Generate an associated file name for a room
 343  */
 344 size_t assoc_file_name(char *buf, size_t n,
 345                      struct ctdlroom *qrbuf, const char *prefix)
 346 {
 347         return snprintf(buf, n, "%s%ld", prefix, qrbuf->QRnumber);
 348 }
 349
 350 void remove_digest_file(struct ctdlroom *room)
 351 {
 352         char buf[PATH_MAX];
 353
 354         snprintf(buf, PATH_MAX, "%s/%ld.eml",
 355                  ctdl_netdigest_dir,
 356                  room->QRnumber);
 357         StripSlashes(buf, 0);
 358         unlink(buf);
 359 }
 360
 361 FILE *create_digest_file(struct ctdlroom *room, int forceCreate)
 362 {
 363         struct stat stbuf;
 364         char fn[PATH_MAX];
 365         int exists;
 366         FILE *fp;
 367
 368         snprintf(fn, PATH_MAX, "%s/%ld.eml",
 369                  ctdl_netdigest_dir,
 370                  room->QRnumber);
 371         StripSlashes(fn, 0);
 372
 373         exists = stat(fn, &stbuf);
 374         if (!forceCreate && (exists == -1))
 375                 return NULL;
 376
 377         fp = fopen(fn, "w+");
 378         if (fp == NULL) {
 379                 syslog(LOG_EMERG,
 380                        "failed to create digest file %s: %s",
 381                        fn,
 382                        strerror(errno));
 383         }
 384         return fp;
 385 }
 386
 387
 388 int create_dir(char *which, long ACCESS, long UID, long GID)
 389 {
 390         int rv;
 391         rv = mkdir(which, ACCESS);
 392         if ((rv == -1) && (errno != EEXIST)) {
 393                 syslog(LOG_EMERG,
 394                        "failed to create directory %s: %s",
 395                        which,
 396                        strerror(errno));
 397                 return rv;
 398         }
 399         rv = chmod(which, ACCESS);
 400         if (rv == -1) {
 401                 syslog(LOG_EMERG,
 402                        "failed to set permissions for directory %s: %s",
 403                        which,
 404                        strerror(errno));
 405                 return rv;
 406         }
 407         rv = chown(which, UID, GID);
 408         if (rv == -1) {
 409                 syslog(LOG_EMERG,
 410                        "failed to set owner for directory %s: %s",
 411                        which,
 412                        strerror(errno));
 413                 return rv;
 414         }
 415         return rv;
 416 }
 417
 418 int create_run_directories(long UID, long GID)
 419 {
 420         int rv = 0;
 421         rv += create_dir(ctdl_message_dir   , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 422         rv += create_dir(ctdl_file_dir      , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 423         rv += create_dir(ctdl_spool_dir     , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 424         rv += create_dir(ctdl_netout_dir    , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 425         rv += create_dir(ctdl_netin_dir     , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 426         rv += create_dir(ctdl_netdigest_dir , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 427         rv += create_dir(ctdl_nettmp_dir    , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 428         rv += create_dir(ctdl_key_dir       , S_IRUSR|S_IWUSR|S_IXUSR, UID, -1);
 429         rv += create_dir(ctdl_run_dir       , S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH, UID, GID);
 430         return rv;
 431 }